Load Specifications
Load data in caliber .375 H&H Mag. with .374 | 250gr | Frontier BTSP bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 56,159 psi | 90% | 2621 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,156 psi | 85% | 2661 fps | 98.3% |
| Accurate 2230 | <<locked>> | 82% | 54,085 psi | 87% | 2674 fps | 98.7% |
| Accurate 2460 | <<locked>> | 88% | 54,911 psi | 88% | 2651 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 56,391 psi | 90% | 2677 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 56,101 psi | 90% | 2703 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 55,796 psi | 89% | 2713 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 53,505 psi | 86% | 2536 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,925 psi | 86% | 2556 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 55,187 psi | 88% | 2703 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 82% | 54,650 psi | 88% | 2552 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 56,043 psi | 90% | 2694 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 84% | 53,316 psi | 85% | 2644 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,708 psi | 88% | 2667 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 92% | 53,693 psi | 86% | 2651 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,970 psi | 90% | 2766 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,679 psi | 88% | 2802 fps | 98.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,795 psi | 88% | 2713 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 56,318 psi | 90% | 2635 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,811 psi | 89% | 2733 fps | 98.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 2710 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,927 psi | 90% | 2572 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,840 psi | 90% | 2579 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,839 psi | 88% | 2713 fps | 98.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 55,114 psi | 88% | 2726 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,824 psi | 86% | 2608 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 92% | 52,939 psi | 85% | 2690 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,810 psi | 88% | 2776 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 88% | 55,535 psi | 89% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,026 psi | 85% | 2651 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,635 psi | 86% | 2690 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 82% | 55,376 psi | 89% | 2579 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 55,608 psi | 89% | 2713 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,595 psi | 62% | 2457 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,983 psi | 87% | 2743 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,330 psi | 55% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,824 psi | 86% | 2671 fps | 99.3% |
| IMR 3031 | <<locked>> | 94% | 54,317 psi | 87% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 55,535 psi | 89% | 2680 fps | 98.9% |
| IMR 4198 | <<locked>> | 86% | 53,708 psi | 86% | 2556 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,780 psi | 86% | 2717 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 92% | 54,708 psi | 88% | 2667 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 82% | 54,665 psi | 88% | 2654 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,882 psi | 88% | 2657 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 53,809 psi | 86% | 2684 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,796 psi | 89% | 2641 fps | 99.2% |
| Lovex S062 | <<locked>> | 98% | 54,578 psi | 88% | 2677 fps | 99.8% |
| Norma 200 | <<locked>> | 84% | 56,376 psi | 90% | 2608 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,809 psi | 86% | 2651 fps | 99.7% |
| Norma 202 | <<locked>> | 94% | 54,099 psi | 87% | 2664 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,882 psi | 88% | 2720 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 98% | 55,550 psi | 89% | 2749 fps | 99.1% |
| Ramshot TAC | <<locked>> | 92% | 55,434 psi | 89% | 2674 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,230 psi | 87% | 2697 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 90% | 56,391 psi | 90% | 2671 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,432 psi | 55% | 1624 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,418 psi | 87% | 2654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 54,317 psi | 87% | 2667 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 55,463 psi | 89% | 2795 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,909 psi | 83% | 2776 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,998 psi | 88% | 2644 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 54,201 psi | 87% | 2651 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,242 psi | 82% | 2664 fps | 99.2% |
| Shooters World AR Plus | <<locked>> | 82% | 54,665 psi | 88% | 2654 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,809 psi | 86% | 2684 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 54,578 psi | 88% | 2677 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,679 psi | 88% | 2628 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,404 psi | 87% | 2310 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,824 psi | 86% | 2654 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,345 psi | 86% | 2726 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,012 psi | 87% | 2612 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,026 psi | 85% | 2648 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 53,563 psi | 86% | 2677 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,069 psi | 85% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 55,622 psi | 89% | 2602 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,941 psi | 90% | 2700 fps | 99.9% |
| Somchem S335 | <<locked>> | 94% | 55,056 psi | 88% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 56,217 psi | 90% | 2697 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,127 psi | 84% | 2667 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,492 psi | 60% | 2500 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 82% | 54,563 psi | 87% | 2503 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 56,333 psi | 90% | 2585 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 56,246 psi | 90% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 56,159 psi | 90% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,665 psi | 88% | 2644 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,430 psi | 81% | 2608 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,541 psi | 71% | 2556 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 92% | 55,303 psi | 89% | 2667 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 98% | 56,333 psi | 90% | 2687 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,006 psi | 74% | 2549 fps | 98.2% |
| Winchester 748 | <<locked>> | 92% | 53,969 psi | 87% | 2707 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 52,910 psi | 85% | 2684 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,914 psi | 62% | 2369 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,893 psi | 80% | 2608 fps | 97.8% |
| Accurate 2230 | <<locked>> | 80% | 50,227 psi | 81% | 2618 fps | 98.2% |
| Accurate 2460 | <<locked>> | 80% | 42,018 psi | 67% | 2454 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 31,314 psi | 50% | 2274 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 37,188 psi | 60% | 2402 fps | 98.6% |
| Accurate 4064 | <<locked>> | 80% | 29,646 psi | 48% | 2251 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 80% | 47,282 psi | 76% | 2448 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,659 psi | 76% | 2464 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 80% | 35,563 psi | 57% | 2356 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 51,561 psi | 83% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,943 psi | 62% | 2408 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 46,688 psi | 75% | 2546 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,521 psi | 60% | 2375 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 36,158 psi | 58% | 2388 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,134 psi | 69% | 2552 fps | 97.9% |
| Alliant Power Pro 2000-MR | 66.7 gr | 88% | 41,756 psi | 67% | 2572 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,141 psi | 53% | 2329 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,106 psi | 71% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 38,348 psi | 61% | 2438 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 92% | 37,507 psi | 60% | 2490 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,547 psi | 84% | 2530 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,108 psi | 74% | 2444 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,090 psi | 67% | 2507 fps | 95.7% |
| Bofors RP3 | <<locked>> | 84% | 32,329 psi | 52% | 2323 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,856 psi | 64% | 2382 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,288 psi | 57% | 2382 fps | 97.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,957 psi | 62% | 2500 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 42,801 psi | 69% | 2484 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,250 psi | 69% | 2500 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 43,932 psi | 70% | 2533 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 52,025 psi | 83% | 2533 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 35,795 psi | 57% | 2369 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 36,376 psi | 58% | 2408 fps | 95.5% |
| Hodgdon LEVERevolution | 61 gr | 82% | 34,127 psi | 55% | 2379 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,454 psi | 41% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,519 psi | 55% | 2326 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 34,432 psi | 55% | 2379 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 38,377 psi | 62% | 2392 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 45,092 psi | 72% | 2434 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 36,825 psi | 59% | 2418 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 37,521 psi | 60% | 2375 fps | 97.1% |
| Lovex D073.4 | <<locked>> | 80% | 51,039 psi | 82% | 2605 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 41,771 psi | 67% | 2457 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 33,692 psi | 54% | 2339 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 36,709 psi | 59% | 2313 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 31,444 psi | 50% | 2254 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 49,835 psi | 80% | 2523 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,969 psi | 56% | 2323 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 34,867 psi | 56% | 2339 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 35,360 psi | 57% | 2379 fps | 95% |
| Ramshot Big Game | <<locked>> | 86% | 37,304 psi | 60% | 2434 fps | 95.2% |
| Ramshot TAC | <<locked>> | 86% | 45,629 psi | 73% | 2520 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,318 psi | 58% | 2382 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,843 psi | 65% | 2418 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,672 psi | 41% | 1453 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,119 psi | 68% | 2461 fps | 99.2% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 51,053 psi | 82% | 2618 fps | 95.3% |
| ReloadSwiss RS 52 | 63.2 gr | 86% | 39,653 psi | 64% | 2526 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 30,922 psi | 50% | 2336 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 38,638 psi | 62% | 2379 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 33,301 psi | 53% | 2277 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 88% | 34,592 psi | 55% | 2369 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 51,039 psi | 82% | 2605 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,692 psi | 54% | 2339 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 31,444 psi | 50% | 2254 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,541 psi | 71% | 2474 fps | 98.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,576 psi | 83% | 2277 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,065 psi | 75% | 2556 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,361 psi | 58% | 2418 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,715 psi | 72% | 2477 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 43,366 psi | 70% | 2490 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,521 psi | 59% | 2375 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,666 psi | 59% | 2300 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,907 psi | 48% | 2169 fps | 98.2% |
| Somchem S321 | <<locked>> | 80% | 40,118 psi | 64% | 2448 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 36,201 psi | 58% | 2303 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 37,449 psi | 60% | 2388 fps | 95.5% |
| Somchem S355 | <<locked>> | 86% | 33,808 psi | 54% | 2333 fps | 95% |
| Somchem S365 | <<locked>> | 96% | 33,011 psi | 53% | 2395 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 80% | 51,430 psi | 82% | 2464 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,655 psi | 67% | 2379 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,695 psi | 59% | 2303 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,865 psi | 51% | 2277 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 32,880 psi | 53% | 2277 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 84% | 30,037 psi | 48% | 2228 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 98% | 41,669 psi | 67% | 2503 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 37,289 psi | 60% | 2365 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 31,647 psi | 51% | 2264 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,462 psi | 57% | 2346 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 36,114 psi | 58% | 2405 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,447 psi | 57% | 2375 fps | 95.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 92 powders for .375 H&H Mag. loaded with the .374 | 250gr | Frontier BTSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,802 fps. Accurate 4064 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.374" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .375 H&H Mag. with the .374 | 250gr | Frontier BTSP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.